Surgical instrument



FIG. 1 is a perspective view of a surgical instrument showing our new design;

FIG. 2 is a left side view;

FIG. 3 is a right side view;

FIG. 4 is a top view;

FIG. 5 is a bottom view;

FIG. 6 is a front view; and,

FIG. 7 is a rear-end view.

The broken line showing of the end of the surgical instrument in FIGS. 1-5 and 7 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a surgical instrument, as shown and described. 